Pneumatic tire tread and buttress



FIG. 1 is a perspective view of a pneumatic tire tread and buttress showing our new design, it being understood that the tread pattern repeats uniformly throughout the circumference of the tire tread;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof with the opposite side being substantially a mirror image thereof; and,

FIG. 4 is a greatly enlarged fragmentary perspective view thereof.

The broken lines depicting the tire inner bead and sidewall and the peripheral boundary between the tire buttress and the sidewall are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a pneumatic tire tread and buttress, as shown and described. 